Well as you haven't had a blue screen since removing the driver then it looks promising. So no I don't think there's anything seriously wrong. Also the Event viewer can lead you into thinking that something is really wrong.
Unless your having issues then stay out of the Event Viewer as it tends to confuse.
No more BSOD after I did uninstall Reflect and I have not attached the USB drive again either.
Is it some how possible to see what .sys files windows are loading?
I just want to make sure that the .sys file that caused the issue is gone and not loading again.
I'll run driver verify during the night and hope that it 'll not find any issue either.